CSX has a commercial on TV that says it can move 1 ton of freight 423 miles on 1 gallon of fuel. Let's convert that to mpg equivalency of a fully loaded 80,000 lb. tractor trailer.
1 ton 423 miles on 1 gallon
multiply times 40 to get:
40 tons 423 miles on 40 gallons
40 tons = 80,000 lbs
80,000 lbs 423 miles on 40 gallons
423 miles/ 40 gallons = 10.5 mpg for the train per 80,000 lbs of freight.
Given that the most net freight a truck can haul is about 44,000 lbs and the truck trailer combo loaded at 80,000 lbs gets about 6 mpg, there is a lot of room for reducing tare weight of vehicle to improve mpg. If the empty weight of the tractor trailer could be reduced by half, this would place mpg of tractor trailer really close to rail. As fuel maintains high price, there is an economic incentive to use more exotic materials in the construction of tractor trailers.
The result of having a 20,000 lb. tractor trailer combo be able to haul 60,000 lb of net freight would reduce highway congestion and foreign oil use. At some price of fuel, there will be an economic equalibrium that makes this happen.
Trucks, trains, and ships
Discussion in 'Questions To Truckers From The General Public' started by 2000Z3, May 28, 2008.
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